mirror of
https://github.com/JGRennison/OpenTTD-patches.git
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faf32200cf
# Conflicts: # CMakeLists.txt # bin/ai/CMakeLists.txt # bin/game/CMakeLists.txt # src/build_vehicle_gui.cpp # src/console_cmds.cpp # src/core/overflowsafe_type.hpp # src/fios.cpp # src/lang/english.txt # src/lang/german.txt # src/lang/korean.txt # src/lang/polish.txt # src/network/core/game_info.cpp # src/network/core/game_info.h # src/network/core/tcp_game.cpp # src/network/core/tcp_game.h # src/network/network.cpp # src/network/network_client.cpp # src/network/network_client.h # src/network/network_coordinator.cpp # src/network/network_gui.cpp # src/network/network_server.cpp # src/network/network_server.h # src/newgrf_engine.cpp # src/openttd.cpp # src/rev.cpp.in # src/settings_type.h # src/train.h # src/train_cmd.cpp
338 lines
8.9 KiB
C++
338 lines
8.9 KiB
C++
/*
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* This file is part of OpenTTD.
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* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
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* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file ini_load.cpp Definition of the #IniLoadFile class, related to reading and storing '*.ini' files. */
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#include "stdafx.h"
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#include "core/alloc_func.hpp"
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#include "core/mem_func.hpp"
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#include "ini_type.h"
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#include "string_func.h"
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#include "safeguards.h"
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/**
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* Construct a new in-memory item of an Ini file.
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* @param parent the group we belong to
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* @param name the name of the item
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*/
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IniItem::IniItem(IniGroup *parent, const std::string &name) : next(nullptr)
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{
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this->name = StrMakeValid(name);
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*parent->last_item = this;
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parent->last_item = &this->next;
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}
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/** Free everything we loaded. */
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IniItem::~IniItem()
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{
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delete this->next;
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}
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/**
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* Replace the current value with another value.
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* @param value the value to replace with.
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*/
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void IniItem::SetValue(const std::string_view value)
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{
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this->value.emplace(value);
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}
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/**
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* Construct a new in-memory group of an Ini file.
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* @param parent the file we belong to
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* @param name the name of the group
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*/
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IniGroup::IniGroup(IniLoadFile *parent, const std::string &name) : next(nullptr), type(IGT_VARIABLES), item(nullptr)
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{
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this->name = StrMakeValid(name);
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this->last_item = &this->item;
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*parent->last_group = this;
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parent->last_group = &this->next;
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if (parent->list_group_names != nullptr) {
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for (uint i = 0; parent->list_group_names[i] != nullptr; i++) {
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if (this->name == parent->list_group_names[i]) {
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this->type = IGT_LIST;
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return;
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}
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}
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}
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if (parent->seq_group_names != nullptr) {
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for (uint i = 0; parent->seq_group_names[i] != nullptr; i++) {
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if (this->name == parent->seq_group_names[i]) {
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this->type = IGT_SEQUENCE;
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return;
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}
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}
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}
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}
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/** Free everything we loaded. */
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IniGroup::~IniGroup()
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{
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delete this->item;
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delete this->next;
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}
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/**
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* Get the item with the given name, and if it doesn't exist
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* and create is true it creates a new item.
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* @param name name of the item to find.
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* @param create whether to create an item when not found or not.
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* @return the requested item or nullptr if not found.
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*/
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IniItem *IniGroup::GetItem(const std::string &name, bool create)
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{
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for (IniItem *item = this->item; item != nullptr; item = item->next) {
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if (item->name == name) return item;
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}
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if (!create) return nullptr;
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/* otherwise make a new one */
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return new IniItem(this, name);
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}
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/**
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* Remove the item with the given name.
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* @param name Name of the item to remove.
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*/
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void IniGroup::RemoveItem(const std::string &name)
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{
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IniItem **prev = &this->item;
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for (IniItem *item = this->item; item != nullptr; prev = &item->next, item = item->next) {
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if (item->name != name) continue;
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*prev = item->next;
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/* "last_item" is a pointer to the "real-last-item"->next. */
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if (this->last_item == &item->next) {
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this->last_item = prev;
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}
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item->next = nullptr;
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delete item;
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return;
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}
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}
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/**
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* Clear all items in the group
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*/
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void IniGroup::Clear()
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{
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delete this->item;
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this->item = nullptr;
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this->last_item = &this->item;
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}
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/**
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* Construct a new in-memory Ini file representation.
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* @param list_group_names A \c nullptr terminated list with group names that should be loaded as lists instead of variables. @see IGT_LIST
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* @param seq_group_names A \c nullptr terminated list with group names that should be loaded as lists of names. @see IGT_SEQUENCE
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*/
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IniLoadFile::IniLoadFile(const char * const *list_group_names, const char * const *seq_group_names) :
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group(nullptr),
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list_group_names(list_group_names),
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seq_group_names(seq_group_names)
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{
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this->last_group = &this->group;
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}
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/** Free everything we loaded. */
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IniLoadFile::~IniLoadFile()
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{
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delete this->group;
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}
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/**
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* Get the group with the given name. If it doesn't exist
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* and \a create_new is \c true create a new group.
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* @param name name of the group to find.
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* @param create_new Allow creation of group if it does not exist.
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* @return The requested group if it exists or was created, else \c nullptr.
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*/
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IniGroup *IniLoadFile::GetGroup(const std::string &name, bool create_new)
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{
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/* does it exist already? */
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for (IniGroup *group = this->group; group != nullptr; group = group->next) {
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if (group->name == name) return group;
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}
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if (!create_new) return nullptr;
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/* otherwise make a new one */
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IniGroup *group = new IniGroup(this, name);
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group->comment = "\n";
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return group;
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}
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/**
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* Remove the group with the given name.
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* @param name name of the group to remove.
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*/
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void IniLoadFile::RemoveGroup(const char *name)
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{
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size_t len = strlen(name);
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IniGroup *prev = nullptr;
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IniGroup *group;
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/* does it exist already? */
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for (group = this->group; group != nullptr; prev = group, group = group->next) {
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if (group->name.compare(0, len, name) == 0) {
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break;
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}
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}
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if (group == nullptr) return;
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if (prev != nullptr) {
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prev->next = prev->next->next;
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if (this->last_group == &group->next) this->last_group = &prev->next;
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} else {
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this->group = this->group->next;
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if (this->last_group == &group->next) this->last_group = &this->group;
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}
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group->next = nullptr;
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delete group;
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}
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/**
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* Load the Ini file's data from the disk.
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* @param filename the file to load.
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* @param subdir the sub directory to load the file from.
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* @pre nothing has been loaded yet.
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*/
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void IniLoadFile::LoadFromDisk(const std::string &filename, Subdirectory subdir, std::string *save)
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{
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assert(this->last_group == &this->group);
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char buffer[1024];
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IniGroup *group = nullptr;
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char *comment = nullptr;
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uint comment_size = 0;
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uint comment_alloc = 0;
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size_t end;
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FILE *in = this->OpenFile(filename, subdir, &end);
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if (in == nullptr) return;
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if (save != nullptr) {
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save->clear();
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if (end < (1 << 20)) save->reserve(end);
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}
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end += ftell(in);
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/* for each line in the file */
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while ((size_t)ftell(in) < end && fgets(buffer, sizeof(buffer), in)) {
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if (save != nullptr) *save += buffer;
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char c, *s;
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/* trim whitespace from the left side */
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for (s = buffer; *s == ' ' || *s == '\t'; s++) {}
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/* trim whitespace from right side. */
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char *e = s + strlen(s);
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while (e > s && ((c = e[-1]) == '\n' || c == '\r' || c == ' ' || c == '\t')) e--;
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*e = '\0';
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/* Skip comments and empty lines outside IGT_SEQUENCE groups. */
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if ((group == nullptr || group->type != IGT_SEQUENCE) && (*s == '#' || *s == ';' || *s == '\0')) {
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uint ns = comment_size + (e - s + 1);
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uint a = comment_alloc;
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/* add to comment */
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if (ns > a) {
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a = std::max(a, 128U);
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do a *= 2; while (a < ns);
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comment = ReallocT(comment, comment_alloc = a);
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}
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uint pos = comment_size;
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comment_size += (e - s + 1);
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comment[pos + e - s] = '\n'; // comment newline
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memcpy(comment + pos, s, e - s); // copy comment contents
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continue;
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}
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/* it's a group? */
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if (s[0] == '[') {
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if (e[-1] != ']') {
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this->ReportFileError("ini: invalid group name '", buffer, "'");
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} else {
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e--;
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}
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s++; // skip [
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group = new IniGroup(this, std::string(s, e - s));
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if (comment_size != 0) {
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group->comment.assign(comment, comment_size);
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comment_size = 0;
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}
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} else if (group != nullptr) {
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if (group->type == IGT_SEQUENCE) {
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/* A sequence group, use the line as item name without further interpretation. */
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IniItem *item = new IniItem(group, std::string(buffer, e - buffer));
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if (comment_size) {
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item->comment.assign(comment, comment_size);
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comment_size = 0;
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}
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continue;
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}
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char *t;
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/* find end of keyname */
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if (*s == '\"') {
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s++;
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for (t = s; *t != '\0' && *t != '\"'; t++) {}
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if (*t == '\"') *t = ' ';
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} else {
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for (t = s; *t != '\0' && *t != '=' && *t != '\t' && *t != ' '; t++) {}
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}
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/* it's an item in an existing group */
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IniItem *item = new IniItem(group, std::string(s, t - s));
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if (comment_size != 0) {
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item->comment.assign(comment, comment_size);
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comment_size = 0;
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}
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/* find start of parameter */
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while (*t == '=' || *t == ' ' || *t == '\t') t++;
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bool quoted = (*t == '\"');
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/* remove starting quotation marks */
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if (*t == '\"') t++;
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/* remove ending quotation marks */
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e = t + strlen(t);
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if (e > t && e[-1] == '\"') e--;
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*e = '\0';
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/* If the value was not quoted and empty, it must be nullptr */
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if (!quoted && e == t) {
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item->value.reset();
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} else {
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item->value = StrMakeValid(std::string(t));
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}
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} else {
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/* it's an orphan item */
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this->ReportFileError("ini: '", buffer, "' outside of group");
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}
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}
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if (comment_size > 0) {
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this->comment.assign(comment, comment_size);
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comment_size = 0;
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}
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free(comment);
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fclose(in);
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}
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